Boy Lake vs Town Line Lake
Water quality, depth, fish species, and recreation comparison.
Town Line Lake has a higher water quality grade (B, Good) than Boy Lake (B, Good). Both are in Cass County, Minnesota.
Both Boy Lake and Town Line Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. These two are within a letter of each other on the rubric — Boy Lake (B) versus Town Line Lake (B). The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.
With grades this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.
Boy Lake
Moderate clarity, visible to about 8.9 ft.
Town Line Lake
Murky, only visible to about 6.6 ft.
Side-by-Side Metrics
| Metric | Boy Lake | Town Line Lake |
|---|---|---|
| Overall Grade | B (Good) | B (Good) |
| Water Clarity | 8.9 ft | 6.6 ft |
| Phosphorus | 21 µg/L | 11 µg/L |
| Chlorophyll-a (Algae) | No data | 2.1 µg/L |
| Maximum Depth | 45 ft | 11 ft |
| Surface Area | 3.3K acres | 697.67 acres |
| Public Access | Yes | Yes |
| Fish Species | 1 | 1 |
| Trophic State | mesotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Town Line Lake wins on overall water quality with a Grade B versus Boy Lake's Grade B. Water clarity: 6.6 ft vs 8.9 ft. For fishing diversity, Town Line Lake also leads with 1 species.